1、返回按钮的颜色

self.navigationController.navigationBar.tintColor = [UIColor whiteColor];

2、设置返回按钮的内容

A -> B

在push的时候，在A中添加代码：

UIBarButtonItem *backItem = [[UIBarButtonItem alloc] init];

backItem.title = @

"你的文字"

;

self.navigationItem.backBarButtonItem = backItem;

3、自定义navigationBar按钮

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"全部已读" style:UIBarButtonItemStylePlain target:self action:@selector(allReadedTapped)];

 self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"backIcon"] style:UIBarButtonItemStyleBordered target:self action:@selector(backButtonTouched:)];

4、自定义navigationBar的title内容和字体大小、颜色

self.title = @"登 录";

self.navigationController.navigationBar.titleTextAttributes = @{

                                                                    NSFontAttributeName:[UIFont systemFontOfSize:17],

                                                                    NSForegroundColorAttributeName:[UIColor whiteColor]

                                                                    };

5、设置navigationBar的背景颜色

self.navigationController.navigationBar.barTintColor = [UIColor colorFromHexRGB:@"3bad6f" alpha:1.0f];

6、取消系统中navigationBar的自带的半透效果

self.navigationController.navigationBar.translucent = NO;